Contacts of the strand formed by residues 320 - 333 (chain B) in PDB entry 1AF6


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with MET 320 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  TRP*     6.2     3.8    -      -       +      -
    316B  TRP*     3.2    37.5    +      -       +      -
    317B  THR*     3.1    30.0    +      -       +      +
    319B  ILE*     1.3    80.7    -      -       +      +
    321B  SER*     1.3    66.7    +      -       -      +
    349B  GLN*     3.8    22.4    -      -       -      +
    350B  GLN      3.3     8.5    -      -       -      +
    351B  TRP*     3.7    35.7    -      -       +      +
    352B  GLN*     4.7     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 321 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313B  MET*     3.1    33.2    -      -       -      +
    314B  TYR      3.2    16.2    -      -       -      -
    315B  LYS*     4.1     2.2    -      -       -      -
    316B  TRP*     3.9     5.6    -      -       -      -
    320B  MET*     1.3    77.1    -      -       -      +
    322B  THR*     1.3    62.4    +      -       -      +
    323B  VAL*     3.8     3.7    -      -       -      +
    349B  GLN*     3.4     8.7    -      -       -      -
    350B  GLN*     2.8    40.0    +      -       -      +
    352B  GLN*     2.9    20.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 322 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312B  PRO      4.2     0.5    -      -       -      +
    313B  MET*     3.5     2.4    -      -       -      +
    314B  TYR*     2.8    40.8    +      -       +      +
    316B  TRP*     2.8    28.3    +      -       +      -
    321B  SER*     1.3    71.1    -      -       -      +
    323B  VAL*     1.3    64.1    +      -       -      +
    324B  MET*     5.8     0.9    -      -       +      -
    347B  LEU*     4.0    22.7    -      -       +      -
    348B  ALA      3.4     9.9    -      -       -      +
    349B  GLN*     2.5    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 323 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  LEU*     4.0    17.2    -      -       +      +
    311B  ARG*     3.8    25.4    -      -       +      +
    312B  PRO      3.7    11.7    -      -       -      +
    313B  MET*     3.9    14.6    -      -       +      -
    321B  SER*     3.8    17.5    -      -       -      +
    322B  THR*     1.3    80.1    -      -       -      +
    324B  MET*     1.3    65.3    +      -       -      +
    347B  LEU*     3.6     2.6    -      -       -      +
    348B  ALA*     2.7    47.4    +      -       +      +
    350B  GLN*     3.9    28.5    -      -       +      +
    357B  ILE*     5.2     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 324 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  LEU*     4.6     0.9    -      -       -      -
    311B  ARG*     3.2    10.7    -      -       -      +
    312B  PRO*     3.1    43.4    +      -       +      +
    322B  THR*     5.8     0.9    -      -       +      -
    323B  VAL*     1.3    77.8    -      -       -      +
    325B  GLU*     1.3    65.3    +      -       -      +
    326B  ILE*     4.1    29.2    -      -       +      -
    345B  ILE*     5.2     8.3    -      -       +      -
    346B  THR      3.2    11.0    -      -       -      +
    347B  LEU*     3.9    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 325 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  TYR*     3.4    20.4    -      -       +      +
     33B  ARG      4.3     0.2    -      -       -      -
     34B  LEU*     3.0    29.0    +      -       +      +
    114B  MET*     3.6    20.5    -      -       +      +
    310B  ILE      3.5     9.9    -      -       -      +
    311B  ARG*     2.9    36.9    +      -       -      -
    324B  MET*     1.3    76.0    -      -       -      +
    326B  ILE*     1.3    67.7    +      -       -      +
    344B  LYS*     2.7    32.6    +      -       -      +
    345B  ILE*     3.4     4.3    -      -       -      +
    346B  THR*     2.8    39.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 326 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  TYR*     4.6     0.7    -      -       -      -
    309B  GLY*     3.0     4.7    -      -       -      -
    310B  ILE*     2.9    58.4    +      -       +      +
    324B  MET*     4.1    26.2    -      -       +      -
    325B  GLU*     1.3    81.0    -      -       -      +
    327B  GLY*     1.3    63.4    +      -       -      +
    328B  TYR*     6.3     0.7    -      -       +      -
    343B  TYR*     5.8     4.5    -      -       +      -
    344B  LYS      3.4     8.5    -      -       -      +
    345B  ILE*     4.4    19.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 327 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  TYR*     3.6    31.8    -      -       -      +
    308B  VAL      3.6     5.8    -      -       -      -
    325B  GLU      4.2     0.4    -      -       -      -
    326B  ILE*     1.3    77.6    -      -       -      +
    328B  TYR*     1.3    60.7    +      -       -      +
    329B  ASP*     5.2     0.6    -      -       -      +
    342B  GLN      3.9     0.3    -      -       -      +
    343B  TYR*     3.2     4.4    -      -       -      +
    344B  LYS*     2.8    39.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 328 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  TYR*     3.8     1.0    -      -       -      -
    306B  TRP*     5.0     5.8    -      -       +      -
    307B  THR*     3.2    10.0    -      -       -      +
    308B  VAL*     2.8    53.1    +      -       +      +
    326B  ILE*     6.3     0.9    -      -       +      -
    327B  GLY*     1.3    75.5    -      -       -      +
    329B  ASP*     1.3    69.1    +      -       -      +
    330B  ASN*     3.3    42.0    +      -       +      +
    341B  ASN*     4.0    15.2    -      -       +      +
    342B  GLN      3.3    16.4    -      -       -      -
    343B  TYR*     4.2    13.9    -      +       +      -
----------------------------------------------------------
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Residues in contact with ASP 329 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  GLN*     5.9     0.2    -      -       -      -
     25B  THR*     3.3    34.2    +      -       +      +
     28B  ALA*     4.2     3.8    -      -       -      +
     30B  SER*     4.5     9.0    +      -       -      +
     31B  LYS*     5.1     2.3    -      -       -      -
     32B  TYR*     3.9    15.9    -      -       -      -
    305B  TRP*     3.3    17.8    +      -       -      +
    306B  TRP      3.6     3.4    -      -       -      -
    307B  THR*     2.7    29.9    -      -       -      +
    327B  GLY      5.2     0.5    -      -       -      +
    328B  TYR*     1.3    78.2    -      -       -      +
    330B  ASN*     1.3    61.4    +      -       -      +
    340B  ASN      4.4     0.2    -      -       -      -
    341B  ASN*     3.1     7.4    -      -       -      +
    342B  GLN*     2.8    43.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 330 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304B  LYS      3.7     1.0    -      -       -      +
    305B  TRP*     3.5     2.6    -      -       -      -
    306B  TRP*     3.0    50.7    +      -       +      +
    328B  TYR*     3.3    30.5    +      -       +      +
    329B  ASP*     1.3    74.8    -      -       -      +
    331B  VAL*     1.3    66.9    +      -       -      +
    332B  GLU*     4.5     1.9    +      -       -      +
    339B  LYS*     3.9    34.6    -      -       -      +
    340B  ASN      3.3     3.6    +      -       -      -
    341B  ASN*     3.7    14.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 331 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  THR*     3.6    24.2    -      -       +      -
     26B  THR      3.9     7.4    -      -       -      +
     27B  GLY*     3.8    18.2    -      -       -      +
     28B  ALA*     3.6    16.4    -      -       +      +
    303B  THR*     4.0    14.6    -      -       -      -
    304B  LYS      3.5     7.4    -      -       -      +
    305B  TRP*     3.7    20.0    -      -       +      -
    330B  ASN*     1.3    81.3    +      -       -      +
    332B  GLU*     1.3    63.2    +      -       -      +
    339B  LYS*     3.2     1.1    -      -       -      -
    340B  ASN*     2.6    41.1    +      -       +      +
    376B  TRP*     3.2    21.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 332 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303B  THR*     3.4     4.5    -      -       -      -
    304B  LYS*     2.9    62.7    +      -       +      +
    330B  ASN*     4.3     2.6    +      -       -      +
    331B  VAL*     1.3    77.1    -      -       -      +
    333B  SER*     1.3    75.7    +      -       -      +
    334B  GLN*     3.5     2.1    +      -       -      -
    337B  GLY*     3.9    15.0    -      -       -      +
    338B  ASP      3.3    11.0    -      -       -      +
    339B  LYS*     2.9    37.6    +      -       +      +
    376B  TRP*     4.2     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 333 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302B  GLY      4.2     5.2    +      -       -      -
    332B  GLU*     1.3    76.5    -      -       -      +
    334B  GLN*     1.3    58.3    +      -       -      +
    335B  ARG      3.0    14.9    +      -       -      -
    336B  THR*     3.3    21.5    +      -       -      -
    337B  GLY*     2.9    27.5    +      -       -      -
    338B  ASP      3.0     8.8    +      -       -      -
    376B  TRP*     3.5    33.3    -      -       -      +
    393B  ALA*     3.2    22.8    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il